<?php
// +----------------------------------------------------------------------
// | OneThink [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2013 http://www.onethink.cn All rights reserved.
// +----------------------------------------------------------------------
// | Author: 麦当苗儿 <zuojiazi@vip.qq.com> <http://www.zjzit.cn>
// +----------------------------------------------------------------------
namespace Home\Model;

use Think\Model;

/**
 * 分类模型
 */
class ChannelModel extends Model {
	
	/**
	 * 获取导航列表，支持多级导航
	 * 
	 * @param boolean $field
	 *        	要列出的字段
	 * @return array 导航树
	 * @author 麦当苗儿 <zuojiazi@vip.qq.com>
	 */
	public function lists($field = true) {
		$map = array (
				'status' => 1 
		);
		$list = $this->field ( $field )->where ( $map )->order ( 'sort' )->select ();
		
		return list_to_tree ( $list, 'id', 'pid', '_' );
	}
}
